13940768 has 12 divisors (see below), whose sum is σ = 27445950. Its totient is φ = 6970368.

The previous prime is 13940761. The next prime is 13940777. The reversal of 13940768 is 86704931.

It can be written as a sum of positive squares in only one way, i.e., 7118224 + 6822544 = 2668^2 + 2612^2 .

It is not an unprimeable number, because it can be changed into a prime (13940761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217793 + ... + 217856.

Almost surely, 2^13940768 is an apocalyptic number.

It is an amenable number.

13940768 is a deficient number, since it is larger than the sum of its proper divisors (13505182).

13940768 is an equidigital number, since it uses as much as digits as its factorization.

13940768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 435659 (or 435651 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 13940768 is about 3733.7337880465. The cubic root of 13940768 is about 240.6738470126.

The spelling of 13940768 in words is "thirteen million, nine hundred forty thousand, seven hundred sixty-eight".